dft_plan_t* generate_new_plan(int dft_size) {
int i;
modinfo_msg("Warning, no plan was precomputed for size %d. Generating.\n",dft_size);
for (i=0;i<MAX_EXTRA_PLANS;i++) {
if (!extra_plans[i].size) {
if (is_complex) {
if (dft_plan_c2r(dft_size, FORWARD, &extra_plans[i])) {
return NULL;
}
} else {
if (dft_plan_r2r(dft_size, FORWARD, &extra_plans[i])) {
return NULL;
}
}
extra_plans[i].options = DFT_PSD | DFT_OUT_DB | DFT_NORMALIZE;
return &extra_plans[i];
}
}
return NULL;
}
int dft_plan(const int dft_points, dft_mode_t mode, dft_dir_t dir, dft_plan_t *plan) {
switch(mode) {
case COMPLEX_2_COMPLEX:
if (dft_plan_c2c(dft_points,dir,plan)) {
return -1;
}
break;
case REAL_2_REAL:
if (dft_plan_r2r(dft_points,dir,plan)) {
return -1;
}
break;
case COMPLEX_2_REAL:
if (dft_plan_c2r(dft_points,dir,plan)) {
return -1;
}
break;
}
return 0;
}